<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<!-- 1.引入外部的vue.js -->
		<script src="./js/vue@3.3.4.global.js"></script>
	</head>
	<body>
		<!-- 2.创建视图 -->
		<div id="app">
			
		</div>
		
	</body>
	<script>
		//3.创建Vue的实例
		var num = 10;
		let a = 'zzz'
		//常量
		const app = Vue.createApp({
			
		})
		//4.挂载
		app.mount('#app')
	</script>
</html>